Targeted literature searches are conducted using chemical names, synonyms, and CASRNs in multiple search engines (e.g., Web of Science, Agricola, ToxNet, ProQuest, etc). Chemicals listed below had targeted searches corresponding to the date indicated in the second column. Each search is identified in the table by the requested chemical or chemical group, with some searches including multiple chemicals/CASRNs. Citations from these searches are reviewed. Studies meeting inclusionary criteria added to ECOTOX; toxicity data results may take 6 months or longer to appear on-line. There may be more recent publications in ECOTOX for a chemical due to related chemical literature searches.